Home / 115,817.76-173,388.60-71,310.96

Finding the Fourth Proportional to 115,817.76, 173,388.60 and 71,310.96

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Solution

The fourth proportional to 115,817.76, 173,388.60 and 71,310.96 is: 106,758.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,817.76 : 173,388.60 = 71,310.96 : x
  2. Step 2: Convert to fraction form
    115,817.76/173,388.60 = 71,310.96/x
  3. Step 3: Cross multiply
    115,817.76x = 173,388.60 × 71,310.96
  4. Step 4: Simplify right side
    115,817.76x = 12,364,507,519.06
  5. Step 5: Solve for x
    x = 12,364,507,519.06/115,817.76
  6. Step 6: Final answer
    x = 106,758.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.